[R] defining a function using strings

[Chernomoretz Ariel]

Hi All,
I need to evaluate a series expansion using Legendre polynomials.
Using the 'orthopolinom' package I can get a list of the first n
Legendre polynomials as character strings.

> library(orthopolynom)
> l<-legendre.polynomials(4)
> l
[[1]]
1

[[2]]
x

[[3]]
-0.5 + 1.5*x^2

[[4]]
-1.5*x + 2.5*x^3

[[5]]
0.375 - 3.75*x^2 + 4.375*x^4

But I can't figure out how to implement functions that could be
evaluated for arbitrary 'x', from this list,
Thanks for your help.

Ariel./


-- 
 Dr. Ariel Chernomoretz
       Departamento de Fisica, FCEyN,        Universidad de Buenos Aires,
       (1428) Ciudad Universitaria,        Ciudad de Buenos Aires, Argentina.
       TE +54 11 4576 3390 ext 817
       Fax +54 11 4576 3357
       email: ariel at df.uba.ar        Webpage: http://www.df.uba.ar/users/ariel